Restructuring and Business Realignment Charges (Details Textual) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended					3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended
	Jun. 30, 2012 Pst Segment [Member]	Jun. 30, 2012 Pst Segment [Member]	Jun. 30, 2013 Other Liabilities [Member]	Dec. 31, 2012 Other Liabilities [Member]	Jun. 30, 2013 Facility Closing [Member]	Dec. 31, 2012 Facility Closing [Member]	Jun. 30, 2013 Selling, General and Administrative Expenses [Member] Electronics [Member]	Jun. 30, 2012 Selling, General and Administrative Expenses [Member] Electronics [Member]	Jun. 30, 2013 Selling, General and Administrative Expenses [Member] Electronics [Member]	Jun. 30, 2012 Selling, General and Administrative Expenses [Member] Electronics [Member]	Jun. 30, 2012 Cost of Sales [Member] Pst Segment [Member]	Jun. 30, 2012 Cost of Sales [Member] Pst Segment [Member]
Restructuring and Related Cost, Incurred Cost							$ 116	$ 45	$ 232	$ 70
Restructuring Reserve			392	419	716	765
Business Realignment Charges	$ 1,322	$ 1,636									$ 623	$ 729